Houston County, AL

ZIP 36303

In ZIP 36303, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Napier Field Water System meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 34× California’s Public Health Goal.
• Nearest Superfund site: American Brass Inc., 4.1 miles away.
• Largest share of modeled toxic air from industry: Covenant Steel Warehouse (96%), mostly chromium.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 455,054 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 36303

• Superfund sites nearbyA to D
• Factories and industrial sitesB to D
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityB to C
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB to C

Based on 13 census tracts · compiled September 10, 2026 · how each grade works and its sources

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